I stumbled upon this statistic a few days ago and found it to be interesting, especially given the ongoing “are e-books destroying/saving traditional publishing” debate.
According to a recent analysis, both science fiction and romance are “overperforming” when it comes to e-books. Science Fiction/Fantasy, in fact, has a 10% share in the medium, more than triple its share in traditional print (though trad. print sales in the genre seem to be declining). (source article)
It seems that the explanation lies more with the types of readers (and their reading habits) that these genres attract than the genre itself. Though personally, when I think of the type of book that I’d most want to own a physical copy of, it would be works in the sci-fi/fantasy genre. Cool covers, collectible series/trilogies… there are tons of reasons I prefer traditional print. But then again, I’ve never actually read an e-book so I might be a little biased and/or out-of-the-loop!